Round Steel Bars Production Process

Jul 12, 2017

Round Steel Bars Production process

Stainless steel pipe fittings require professional answers. This article needs to answer two questions. Stainless steel pipe production process and the specific processing methods which? Conventional semi-continuous hot rolling, CSP continuous casting and rolling, plate units, furnace unit This is a different processing technology, no one has a good advantage, to ensure production The stainless steel pipe elbow has good function and usefulness.

In the processing of stainless steel elbow, when the tapping to the thread fit size, may be thrown two tap face contact situation, the reason is the tapered base surface longer. In this situation, the tapered surface is required to be short, but the end face may have a negative effect on the performance of the tap. Tape end grinding short before and after the taps and the relationship between the workpiece can be seen, the end of the short taper screw thread can not be properly into the hole, but by the end into the hole, thus affecting the tap function.

In the steckel mill, the history of the thermomechanical history of the stainless steel stamping elbow pipe is significantly changed, especially in the production of micro-stainless steel stamping pipe fittings, which will seriously affect the recrystallization level, grain growth and Precipitation, and lead to the entire stainless steel stamping elbow pipe length on the ultimate microstructure and function of the violent changes. Grinding must adhere to the front of the original geometric shape of the front, as far as possible the use of tap grinding grinder to stop grinding.

A better way to handle a long taper base is to customize a shorter tapered surface based on the specific requirements of the thread being machined. In order to extend the service life of the tap, improve the quality of thread processing, should pay attention to the stainless steel pipe elbow pipe fittings with good processing technology, in the processing using a different process approach. At that time the use of stainless steel measuring liquid to identify stainless steel, in fact, only to a certain extent, answered the "not what" problem, and can not really answer "cut when what is the problem". For example: the "304 type" determination of liquid or "Ni8" type test solution test the so-called "304" product, if the test results and real 304 products, we must not judge it is 304, and can only say " Can "be 304. Since the power type is still no electricity type, the results of the test only we judge the measured steel is a steel (such as 304) a necessary but not sufficient conditions. If we want to really understand the steel cut when the trademark, then you must go through a professional chemical analysis or spectral analysis and other methods, all of its chemical composition, and then follow the norms of prestige to identify. Of course, these methods and the use of stainless steel liquid comparison, more professional and accurate, but in the difficulty or cost is also a lot of high.

In addition, the quality of stainless steel material is not only the quality of its chemical composition of the resolution, but also with its arrangements, functions, purity and other factors. And on the determination of these elements, stainless steel test fluid is clearly powerless, as long as the test by virtue of the relevant professional examination.

At that time the mall on the stainless steel liquid products, in the identification and so there is no scientific local. As mentioned above, "N" instead of "Ni" situation, there are 200 series of stainless steel is divided into "200,201,202" and so on. In the actual application process also found that some test results with the naked eye is difficult to distinguish, simply lead to fault. In contrast to the significant color differences between 201, 202, and 301, 304, the color change between 201 and 202, 301, and 304 is not significant. These unscientific and the lack of local manufacturers need to further improve.